Renal transplant, previous breast cancer, and progressive breathlessness

A 68 year old woman presented with worsening shortness of breath on exertion. She had a history of polycystic kidney disease, chronic renal failure, renal transplant, and secondary hyperparathyroidism and hypercalcaemia while she was on dialysis. She had left mastectomy for breast cancer, and was on multiple medications including tacrolimus and prednisolone. Blood tests and clinical examination were unremarkable but a chest radiograph noted multiple bilateral nodular densities. Therefore a computed tomography scan was organised. What does this cross-sectional computed tomography scan (fig 1, lung window) show?